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Weather & Climate in San Cristóbal, Peru
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Cristóbal has a cool climate with an average annual temperature of 40°F (5°C). Winters average 40°F in January while summers reach 39°F in July / relatively mild seasonal variation. The area gets 351 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 59.2 inches (wetter than the 38-inch national average). The area receives 126.6 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 15,410 feet.
Temperature
40°F Jan (4°C)
39°F Jul (4°C)
| Annual Average | 40.3°F |
| 25% below US avg | |
| January Average | 40°F (4°C) |
| July Average | 39°F (4°C) |
| Sunny Days | 351 days/yr |
Geography
| Elevation | 15,410 ft (4,697 m) |
| Area | 146.4 sq mi (379.0 km²) |
| Population Density | 6/sq mi |
| Coordinates | -11.7349°N, 76.0626°W |
| Timezone | America/Lima |
Precipitation & Snow
Air Quality
Earthquake History
197 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Apr 18, 1993 | 15 km SE of Lachaqui, Peru | M6.3 | 52 km | 106 km |
| Jun 23, 2021 | 11 km WSW of Mala, Peru | M5.9 | 130 km | 50 km |
| Oct 4, 1999 | 21 km ENE of Paucartambo, Peru | M5.6 | 126 km | 33 km |
| Oct 1, 1996 | 19 km SSW of Chilca, Peru | M5.6 | 133 km | 62 km |
| May 28, 2003 | 33 km SSW of Santiago de Surco, Peru | M5.6 | 141 km | 43 km |
| Jan 23, 1990 | 4 km WSW of Cuenca, Peru | M5.6 | 134 km | 104 km |
| Jan 7, 2022 | 6 km NW of Cocachacra, Peru | M5.6 | 58 km | 96 km |
| Nov 25, 2013 | 12 km SE of Omas, Peru | M5.5 | 97 km | 77 km |
| Feb 17, 2005 | 7 km W of Carhuamayo, Peru | M5.4 | 90 km | 126 km |
| Dec 25, 1998 | 9 km SE of Chancay, Peru | M5.4 | 126 km | 67 km |
| May 12, 2022 | 9 km W of San Bartolo, Peru | M5.4 | 113 km | 53 km |
| Nov 6, 1992 | 18 km NNW of Mucllo, Peru | M5.3 | 105 km | 14 km |
| Mar 29, 2008 | 14 km SSW of Callao, Peru | M5.3 | 130 km | 51 km |
| Mar 18, 1999 | 21 km NNE of Huancaya, Peru | M5.3 | 52 km | 116 km |
| May 17, 2018 | 7 km E of Mala, Peru | M5.2 | 117 km | 56 km |
| Jun 3, 2014 | 20 km W of Chilca, Peru | M5.2 | 128 km | 36 km |
| Aug 1, 2009 | 8 km SSW of Chambara, Peru | M5.2 | 82 km | 101 km |
| Feb 15, 2024 | 13 km NW of Chancay, Peru | M5.2 | 144 km | 67 km |
| May 13, 2019 | 11 km WNW of Salcabamba, Peru | M5.2 | 137 km | 90 km |
| Apr 7, 2001 | 3 km E of Oxapampa, Peru | M5.1 | 149 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
6 tsunamis recorded within 500 km. Highest wave on record: 30.0 m (98 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1971 | CHUNGAR | Meteorological | 30.0 m | 600 | 84 km |
| 1746 | CENTRAL PERU | Earthquake | 24.0 m | 5,941 | 127 km |
| 1865 | CENTRAL PERU | Earthquake | 2.0 m | 5 | 117 km |
| 1806 | CENTRAL PERU | Earthquake | 1.0 m | — | 120 km |
| 1878 | CENTRAL PERU | Unknown | — | 5 | 106 km |
| 1860 | CENTRAL PERU | Earthquake | — | — | 120 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 5.3 in | |
| February | 40°F (5°C) | 6.3 in | Warmest, Wettest |
| March | 40°F (5°C) | 6.2 in | |
| April | 40°F (4°C) | 3.1 in | |
| May | 38°F (3°C) | 0.8 in | |
| June | 36°F (2°C) | 0.3 in | Driest |
| July | 39°F (4°C) | 0.3 in | |
| August | 36°F (2°C) | 0.6 in | Coldest |
| September | 37°F (3°C) | 1.7 in | |
| October | 38°F (4°C) | 3.1 in | |
| November | 39°F (4°C) | 2.8 in | |
| December | 40°F (4°C) | 4.5 in |
San Cristóbal has a seasonal temperature swing of 4°F / from 36°F in August to 40°F in February. Total annual precipitation is 35.0 inches, with February being the wettest month (6.3") and June the driest (0.3").